The maker of the painkiller Darvon is ending sales of the drug in the U.S. under pressure from the Food and Drug Administration, which says the drug causes deadly heart rhythms, according to the Pioneer Press.
About 10 million U.S. Americans have been prescribed some form of the drug since 2009, according to CNN.
An official from the FDA said they urged doctors to stop prescribing the drug, and patients currently taking the drug should contact health professionals, according to CNN.
"The drug's effectiveness in reducing pain is no longer enough to outweigh the drug's serious potential heart risks," the FDA said, after a study was conducted examining the drug's impact on heart rhythms, according to CNN.
